Altair

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Altair

Altair , brightest star in the constellation Aquila (Eagle); Bayer designation α Aquilae; 1992 position R.A. 19 ^h 50.5 ^m , Dec. +8°51′. Its apparent magnitude is 0.74, making it one of the 20 brightest stars in the sky, and it is of spectral class A7 IV,V. Altair is one of the nearest bright stars, its distance being 16.8 light-years.

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Altair

A Dictionary of Astronomy | 1997 | Â© A Dictionary of Astronomy 1997, originally published by Oxford University Press 1997. (Hide copyright information) Copyright

Altair The star Alpha Aquilae, magnitude 0.76, the twelfth-brightest star in the sky. It is an A7 dwarf 16.8 l.y. away. Altair forms one corner of the so-called Summer Triangle of stars, completed by Deneb and Vega.

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Altair

World Encyclopedia | 2005 | Â© World Encyclopedia 2005, originally published by Oxford University Press 2005. (Hide copyright information) Copyright

Altair (Alpha Aquilae) Star whose luminosity is ten times that of the Sun. Characteristics: apparent mag. 0.77; spectral type A7; distance 16 light-years.

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